Table 4 Multivariate models building on all significant factors in univariate analysis

1

(Constant)

74.907

23.552

3.180

0.003

Anti-dsDNA (ELISA) Ab (U/ml)

0.413

0.149

0.381

2.765

0.008

2

(Constant)

72.028

23.730

3.035

0.004

Anti-dsDNA (ELISA) Ab (U/ml)

0.520

0.184

0.480

2.828

0.007

Anti-dsDNA Ab – EliA (IU/ml)

-0.142

0.142

-0.169

-0.997

0.324

3

(Constant)

68.464

26.533

2.580

0.013

Anti-dsDNA (ELISA) Ab (U/ml)

0.512

0.187

0.472

2.732

0.009

Anti-dsDNA Ab – EliA (IU/ml)

-0.137

0.145

-0.163

-0.947

0.349

Total SLEDAI score

1.153

3.676

0.044

0.314

0.755

4

(Constant)

63.596

31.159

2.041

0.048

Anti-dsDNA (ELISA) Ab (U/ml)

0.506

0.190

0.467

2.658

0.011

Anti-dsDNA Ab – EliA (IU/ml)

-0.132

0.147

-0.158

-0.901

0.373

Total SLEDAI score

1.013

3.743

0.039

0.271

0.788

ESR (mm)

0.208

0.677

0.044

0.307

0.761

5

(Constant)

65.107

31.917

2.040

0.048

Anti-dsDNA (ELISA) Ab (U/ml)

0.512

0.194

0.473

2.646

0.012

Anti-dsDNA Ab – EliA (IU/ml)

-0.133

0.149

-0.159

-0.897

0.375

Total SLEDAI score

1.137

3.808

0.044

0.299

0.767

ESR (mm)

2.558 × 10^-03

0.922

0.005

0.028

0.978

CRP (mg/l)

0.154

0.522

0.057

0.295

0.769

6

(Constant)

61.031

58.443

1.044

0.303

Anti-dsDNA (ELISA) Ab (U/ml)

0.513

0.196

0.473

2.614

0.013

Anti-dsDNA Ab – EliA (IU/ml)

-0.128

0.164

-0.152

-0.780

0.440

Total SLEDAI score

1.196

3.919

0.046

0.305

0.762

ESR (mm)

8.484 × 10^-03

0.956

0.002

0.009

0.993

CRP (mg/l)

0.144

0.541

0.053

0.267

0.791

Age

0.108

1.284

0.015

0.084

0.934

7

(Constant)

59.716

59.051

1.011

0.318

Anti-dsDNA (ELISA) Ab (U/ml)

0.542

0.206

0.501

2.627

0.012

Anti-DNA-EliA (IU/ml)

-0.134

0.166

-0.160

-0.808

0.424

Total SLEDAI score

1.772

4.116

0.068

0.430

0.669

ESR (mm)

-6.240 × 10^-03

0.965

-0.001

-0.006

0.995

CRP (mg/l)

0.144

0.546

0.053

0.264

0.794

Age

-0.193

1.425

-0.028

-0.135

0.893

Total SLICC

5.964

11.773

0.095

0.507

0.615